| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a multilayer composite material of a polyamide base of which all the layers have sufficient heat distortion temperatures. SOLUTION: The multilayer composite material has a layer I constituted of a molding material which contains constituents: (a) a polyamide of 0-80 pts.mass selected from PA6, PA66 and PA6/66, (b) a polyamine-polyamide copolymer of 0-100 pts.mass, and (c) polyamide of 0-80 pts.mass selected from PA11, PA12, PA612, PA1012 and PA1212. The total of parts by mass of the constituents (a), (b) and (c) is 100, and moreover at least 20 parts by mass in the total of the constituents (a) and (b) are constituted of a monomer unit derived from a combination of a caprolactam and/or a hexamethylenediamine/ adipic acid, while at least 20 parts by mass in the total of the constituents (b) and (c) are constituted of a monomer unit derived from a combination of anω-amino undecanoic acid, a lauric lactam and the hexamethylenediamine/1,12- dodecanoic diacid.</p> |
